CITROËN ID 19 Repair Manual page 61

ID 19
OPERATION No. ID 112-3 : Overhauling a cylinder hratf
Op.
ID 112-3
1
1
2
7
8
1
PARTICULAR POINTS
Dismantling.
One cannot replace the sparking plug tubes or the valve seatings without the use of special tools. Do not remove the studs.
One can replace the valve guides (see paragraph 2).
If a thread is damaged (except spark plug holes) it is possible to replace it by a "Heli-Coil" thread (see note MR 4279).
As s embly
Characteristics of the valve springs:
Outer springs: L = 37 mm under load of 24.200 & 1.350' kg and L = 28.5 mm under load of 52 f 2.800 kg.
Inner springs: L = 24.5 mm under load of 5.250 $ 0.300 kg and L - 16 mm under load
qf II t-
O-600
kg.
Fitting the valves (do notjt a sealing ring on the exhaust valves).
DISMANTLING (see Pl. 3).
Stripping the cylinder head :
4
b)
Remove the short screws (43) fixing the cylinder head,
the inlet rocker shaft and the rocker shaft supports.
Stripping the inlet rocker shaft assembly :
Remove fixing screws (3), the clamps (33),
rhe
washers (37), the springs (45) and the rocker arms (34 and 35).
Drive out the plugs from the rocker shaft by means of a pin punch passing through the fixing screw holes.
Clean the interior of the shaft thoroughly using a metal pin and make sure that the lubrication holes of the
inlet and exhaust shafts as well as those of the rocker arms and the shaft supports are clear.
Refit the plugs and solder them with tin solder.
c)
4
e)
Remove water pump and water pump cover
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remove the exhaust manifold and the fixing bracket of the manifold screen.
Remove the inlet manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..*......................................*...
Remove the valves (spring compressor 1614-T and support and base assembly 1616-T, see Pl.
5) . . . . . . . ...*.
f) Remove the inlet pipe cover plates, the rear plate assembly and the water outlet pipe . . . . . . . . . . . . . . . . . . . . . . .
NOTE
- Since the cylinder head is made of aluminium, the sparking plug tubes and the valve seatings cannot be
replaced without special tools. Do not remove the studs.
TOOLS
12-14-17 mm box
spanners
12 mm box spanner
Spring compressor 1614-T
Support and base assembly
1616-T
12 mm box spanner